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\title{Caculation of SFR}



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\section{SFR}
$S_b$and $S_s$ are in units of Num/yr.
SFR is in units of $M_\odot/yr$

I am not sure whether SFR includes all stars or binaries only, so I caculate it individually.

Main form of caculation is as following.
$$S_b \dot (the average mass of M_low and M_up) + S_b \dot (the average mass of M_2) + S_s \dot(average mass) = SFR$$


$$S_b \dot \int_{M_{low}}^{M_{up}}
%\noindent\textbf{Disclosures.} The authors declare no conflicts of interest.




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